Polymer Technology Which of the following is a copolymer? Polythene Teflon PVC Bakelite Polythene Teflon PVC Bakelite ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Molecular weight of a polymer is equal to the molecular weight of the repeat unit multiplied by the degree of polymerisation. What is the molecular weight of poly vinyl chloride (PVC), if its degree of polymerisation is 800? 51600 49200 50000 50800 51600 49200 50000 50800 ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology A copolymer is formed by the combination of two or more monomer molecules With the elimination of small amount of water Of the same monomer by elimination of small molecules of water In a chain without the elimination of water None of these With the elimination of small amount of water Of the same monomer by elimination of small molecules of water In a chain without the elimination of water None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Which of the following is not a condensation polymer? None of these Bakelite Melamine polymer Polymethylmethacrylate (PMMA) None of these Bakelite Melamine polymer Polymethylmethacrylate (PMMA) ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Addition polymerisation takes place either by a free radical mechanism or ionic machanism depending on the reagents used. Free radical polymerisation is catelyzed by __________ , which decompose to give free radicals. Organic peroxides Hydroflouric acid Sulphuric acid None of these Organic peroxides Hydroflouric acid Sulphuric acid None of these ANSWER DOWNLOAD EXAMIANS APP
Polymer Technology Mastication of rubber means Improving its curing rate Its softening A treatment to retard its deterioration due to oxidation Depression of its freezing point Improving its curing rate Its softening A treatment to retard its deterioration due to oxidation Depression of its freezing point ANSWER DOWNLOAD EXAMIANS APP
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